In rock samples, the C^14 activity measured 12 mC (12 millicurie). C^14 half-life 5730 year. Calculate the mass of C^14 in the rock sample 2865 years earlier.

Q: I need help with 13 as well, please

A: A vacuum works by the principle of suction. Suction happens when the absolute pressure created at…

Q: Mq qni tude

A:

Q: drive the next relationship = 0 ne² l mud

A: Drift velocity:  Drift velocity is defined as the average velocity of the electron that drift…

Q: Write down Newton's Second Law for translation along the direction of the slope, calling this the…

A: Given Data: Friction →fs Weight →Mg Reaction force →FN Radius →R Inclination height →h Inclination…

Q: please, I can't encourage chat - gpt answer properly 74. How does altitude affect distance…

A: Step 1: GRAVITY: As we know, different places have different gravity on earth, so that causes a…

Q: What is the answer written out in meters?

A: We need to convert  μm into m 1.0 μm=10-6 m

Q: It seems like a incorrect answer

A:

Q: How do I write out the answer?

A: Pinitial will be initial pressure. Pfinal will be final pressure. Then the answer will be, Pfinal =…

Q: Answer this two pages questions

A: as per the guidelines, the first multipart question will be answered here.

Q: That's not an answer choice

A: The charge of the atomic nucleus having 7 protons, qp=7e=7×1.6×10-19 C The charge of the electron…

Q: completely lost, any help?

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Why is it 90o?

A:

Q: A cyclist, starting from rest, travels in a straight line for 10 minutes. 1. During the first 2.0…

A: Given the uniform acceleration is 0.067 m.s-2 for the first two minutes. Therefore the velocity for…

Q: need the second question to be answered

A:

Q: Hello, the answer provided above was incorrect. Could I please get a revised answer.

A:

Q: the answer my teacher got is 171, how?

A:

Q: Res=?

A: According to the question we have to find the value of Req.

Q: Surfaces of copper and cast iron in contact have coefficient of static friction =1.05 and…

A:

Q: I need help completing the table

A:

Q: An electron moves in a uniform magnetic field as shown below. Find the direction of the force on the…

A: According to Fleming's left hand rule, the direction of thumb shows force, index finger shows as…

Q: E1.A horizontally directed force of 25.0 N is used to pull a box a distance of 1.5 m across a…

A: Dear Student,   As per our company policy, I am allowed to answer only first 3 subparts. So, kindly…

Q: (a) Find the velocity of a neutron that has a 6.00-fm wavelength (about the size of a nucleus).…

A: “Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: This is all 1 question

A: (E18) Given: The upward force applied is of 27.0 N. The mass of the object is 2.3 kg. Introduction:…

Q: Write the history of electicity in your own words. 2-3 paragraphs.

A: Electricity plays an important role in our daily lives. In today's world, it is needed for almost…

Q: Time C wwwwwww

A: Here, T=2πmk where, m= mass k= spring constant

Q: Thank you I wll give thumbs up!

A:

Q: Only the first 3 parts were answered. Still need help with the last 3

A: Here, we have to Use Flemings Left Hand Rule : the forefinger representing the direction of the…